“Unexpected exception to CPUvector 300”

[Shaqxify]

Salutations NetPros;

I have this Cisco 2960X Catalyst that while booting gives an “Unexpected exception to CPUvector 300” error.

The boot process then crashes and starts all over again creating an infinite loop.

Any help on this please?

Regards & Respect,

Shaqx

[Leo Laohoo · Accepted solution]

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@Shaqxify  wrote:

Timeout waiting for PLL lock and ready
ERR: initializing port 0
PCIe link init failure

supervisor subsystem initialization failed

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The switch is dead. 

Contact Cisco TAC and organize for an RMA.

[Shaqxify]

Hi @Leo Laohoo ,

Thank you so much for the confirmation. I had already initiated the RMA process.

Regards & Respect,

Shaqx.

[Mark Elsen]

 - Here are some info's on that :

          https://bst.cloudapps.cisco.com/bugsearch/bug/CSCtg49820/?referring_site=ss&dtid=osscdc000283

          https://community.cisco.com/t5/switching/2960xr-48fpsi-unexpected-exception-to-cpuvector-300/td-p/3682162?dtid=osscdc000283

   M.

[Shaqxify]

@Mark Elsen Thank you very much. I have initiated the RMA process.

Regards & Respect,

Shaqx

[Khankhan1981]

The post is too old but my comments can helped someone thats why want to share my experience...

I was facing the same problem and most rather i would say all suggest RMA but i keep on trying and finally ios chang worked for me version 12.2-5...